Dell OptiPlex 980 (Early 2010) - Manual (Page 58)

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Front Thermal Sensor
Dell™ OptiPlex™ 980 Service Manual—Small Form Factor
WARNING: Before working inside your computer, read the safety information that shipped with your
computer. For additional safety best practices information, see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
Removing the Front Thermal Sensor
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the hard-drive bay .
3. Remove the internal speaker .
4. Remove the processor fan .
5. Disconnect the front thermal sensor cable from the system board.